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Branching Fractions and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math>Asymmetries in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="…
Based on a sample of 227×106 BB¯ pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the branching fraction B(B0→π0π0)=(1.17±0.32±0.10)×10−6, and the asymmetry Cπ0π0=−0.12±0.56±0.06. The B0→π0π0 signal has a significance of 5.0σ. We also measure B(B+→π+π0)=(5.8±0.6±0.4)×10−6, B(B+→K+π0)=(12.0±0.7±0.6)×10−6, and the charge asymmetries Aπ+π0=−0.01±0.10±0.02 and …